Samsung controller data transfer

Hardware Heatpump
1

Hi guys,
You are infinitely more knowledgeable than me when it comes to data transfer, so can you help with the following, please?

My Samsung controller (with its F1/F2 terminals) is in my unheated garage, and whenever I want to use Glyn’s MIM-C02N - also in the garage - I have to cart my laptop out there. It would be much easier if I could get the signals back to my study where the laptop is, so I could watch things “live” at any time.
I could run 10m 2-core cable from the controller, drill a hole through the study wall for it, and relocate the MIM-C02N to the study, but it would be more elegant if I could somehow get the F1/F2 signal into a local wireless router which I can link to with the laptop.

Do you now if this is possible, or suggest a forum contact who has done this sort of thing already?

Many thanks!
Sarah

2

Hmm I’ve just found a pair of power line adapters. If I can covert the RS-485 output to an ethernet connector, maybe I can get the F1/F2 output to my laptop without any drilling…

1 Like
3

This is probably one for @glyn.hudson. Sounds like a good challenge!

4

I think it’s just modbus RS485, so you should be able to use a wireless modbus adaptor e.g

https://www.amazon.co.uk/Karriter-Wireless-Transceiver-Transmitter-Receiver-Blue/dp/B0CG5BCVGB/ref=asc_df_B0CG5BCVGB

Or an RS485 to TCP/IP adaptor if you have IP networking already in the garage.

Check the transmission speed is fast enough for the baud rate.

Would you mind if I made this message public on the forum? I’ve not done this before, I reckon there will be other users who will have experience.

1 Like
5

Thanks for the pointer @glyn.hudson :slightly_smiling_face:

  1. What I’m going to try first is a Waveshare RS485 to Ethernet Converter Supports Customized Heartbeat/Registration Packets,Webpage,RFC2217-like Protocol Available Client Modes TCP Server, TCP Client, UDP Server, UDP Client, HTTPD : Amazon.co.uk: Computers & Accessories. When it arrives my plan is to connect F1/F2 to the RS485 input on this dongle, then ethernet power line adapters (PLA) in the garage and next to my laptop. I fully expect that it won’t work - the SNET-PRO2 software will probably be looking for a USB input rather than the RJ45. (Having said that, PLAs work perfectly well getting data from my PV inverter to my laptop, so my fingers are crossed.) If it does work, here we would have a really cheap way for folk to access their Outdoor Unit data.
  2. Feel free to make as much of this thread public as you feel useful. I did think of asking the question as a new topic, or include @Robert.Wall as an adressee, but was wary of revealing my total ignorance of electrical matters (I wouldn’t know an IP network from a hole in the ground :face_with_diagonal_mouth:).
7

I’ve got the above Waveshare converter to work :slightly_smiling_face:, so now I can monitor my Outdoor Unit in comfort, and for less than £25, so @glyn.hudson I can now return your MIM-C02N if you’ll PM me your postal address.
(I’ll do a write-up of the hardware/software/connection details in due course.)

Edit: This write up can be found on the Monitoring Your Samsung ASHP Controller thread.

1 Like